Automate TWRP commands to launch checkra1n on arm/arm64 Android

Copies an OpenRecoveryScript (checkra1n.zip) file to /data/checkra1n and a recovery command to /cache/recovery/command to execute checkra1n for the next launch of TWRP

tl;dr one tap checkra1n execution for Android.

Requirements

• Rooted Android device
• ARM/ARM64 CPU
• USB-C to USB-A Adapter
• TWRP Custom Recovery
• Supported iOS/tvOS device

Screenshots

• Boots to TWRP and executes checkra1n with one button
• Provides DFU Instructions in App
• Automaically reboots to Android once it detects checkra1n is complete

• Root Required
  • Open the App
  • Allow root/su permissions
  • Tap the reboot button

• Why run in recovery?

  • TWRP provides an environment with fewer services fighting over the USB controller. checkra1n relies on a highly controlled data flow over USB.

• Will this work with all Android phones?

  • No. If you could already do this manually in TWRP, yes definitely. My Nexus 5X (2015) and Mi Mix 3 (2018) both work.

• DFU Instructions

• Blog Post

  • https://downthecrop.xyz/blog/jailbreak-ios-device-with-android-phone-checkra1n-twrp-app/

• Demo/Tutorial Video

  • https://www.youtube.com/watch?v=eIRkph1XfM0

• APK Installer Release: app-release.apk
• TWRP Script Release: checkra1n-twrp-flashable.zip

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• BSD Zero Clause LICENSE
• Copyright 2020 © downthecrop.